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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0640005 , Highway 28 Water Association

18 of the 57 analytes this system has been tested for have been detected at least once, across 149 samples on record.

The other 39 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 149 samples on record, detections range from October 27, 2003 to February 10, 2026. These figures cover the whole record.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Every analyte ever detected for Highway 28 Water Association, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte Kind Detected in First detected Last detected
Copper, Free 1022 Inorganic Chemical 60 of 60 results Sep 23, 2008 Aug 29, 2023
Lead 1030 Inorganic Chemical 29 of 60 results Sep 23, 2008 Nov 3, 2020
Nitrate-Nitrite 1038 Inorganic Chemical 20 of 22 results Jun 16, 2004 Feb 10, 2026
Nitrate 1040 Inorganic Chemical 20 of 22 results Jun 16, 2004 Feb 10, 2026
Barium 1010 Inorganic Chemical 10 of 10 results Oct 27, 2003 Mar 24, 2025
TTHM 2950 Organic Chemical 6 of 19 results Aug 23, 2004 Aug 21, 2025
Nickel 1036 Inorganic Chemical 5 of 10 results Apr 10, 2006 Mar 24, 2025
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
Radium-228 4030 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
Chloroform 2941 Organic Chemical 3 of 14 results Sep 13, 2007 Aug 21, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 3 of 18 results Jul 7, 2010 Nov 16, 2021
Bromodichloromethane 2943 Organic Chemical 2 of 14 results Sep 13, 2007 Aug 21, 2025
Dibromochloromethane 2944 Organic Chemical 2 of 14 results Oct 13, 2020 Aug 21, 2025
Sodium 1052 Inorganic Chemical 2 of 2 results Sep 26, 2019 Nov 13, 2023
Cadmium 1015 Inorganic Chemical 2 of 10 results Mar 22, 2004 Apr 10, 2006
Monobromoacetic Acid 2453 Organic Chemical 1 of 13 results Oct 13, 2020 Oct 13, 2020
Chromium 1020 Inorganic Chemical 1 of 10 results May 8, 2019 May 8, 2019

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 31–40 of 149 samples, newest first — collected April 20, 2021 to October 18, 2022. The summary above covers all 149.

24 results from the 10 samples listed here: 5 detected, 19 not detected. Across the whole record it is 181 of 639. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Highway 28 Water Association, every result from 31 to 40 of 149 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result Analyte Monitoring period
Collected
Oct 18, 2022 16:30
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
IN-221019-003
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0151 mg/l , sample collected Oct 18, 2022 16:30, sampling point TF080 Barium 1010 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
0.0009 mg/l , sample collected Oct 18, 2022 16:30, sampling point TF080 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 18, 2022 16:30, sampling point TF080 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Dec 31, 2022
Collected
Sep 26, 2022 16:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
CN-220927-002
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Sep 26, 2022 16:00, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Dec 31, 2022
Collected
Jun 27, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-220628-021
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2022 14:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Jun 27, 2022 14:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-220628-021
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 27, 2022 14:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 21, 2022 15:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-220322-003
Laboratory
MSDH Lab
0.855 mg/l , sample collected Mar 21, 2022 15:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
0.855 mg/l , sample collected Mar 21, 2022 15:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 21, 2022 15:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2022 – Dec 31, 2022
Collected
Nov 16, 2021 15:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
HA-211117-018
Laboratory
MSDH Lab
1.44 ug/l , sample collected Nov 16, 2021 15:00, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Not recorded
Collected
Nov 16, 2021 15:00
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
TH-211117-018
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 16, 2021 15:00, sampling point MRT000 TTHM 2950 EPA method 524.2 Not recorded
Collected
Oct 5, 2021 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
RU-211006-023
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 5, 2021 14:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Jun 28, 2021 14:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
RU-210629-030
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 28, 2021 14:00, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Apr 20, 2021 15:20
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
NI-210421-019
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 20, 2021 15:20, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 20, 2021 15:20, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 20, 2021 15:20, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2021 – Dec 31, 2021

Routine (10).